hg: jdk9/sandbox/hotspot: JDK-8054307-branch: Improved string concat optimization for constant strings/chars/ints.

[tobias.hartmann at oracle.com]

Changeset: 56e557d54264
Author:    thartmann
Date:      2015-04-16 11:21 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/56e557d54264

JDK-8054307-branch: Improved string concat optimization for constant strings/chars/ints.

! src/share/vm/opto/stringopts.cpp
! src/share/vm/opto/stringopts.hpp
! test/compiler/intrinsics/string/TestStringIntrinsics.java